My favorite 2 builds in 5e are are human gloomstalker (3)/totem barbarian (5)/ battlemaster (4) and a half-elf vengance paladine (6)/ wild magic sorcerer (6)... so at this point I'm really looking forward to multiclassing because I love the unique feeling those builds have.
I've tested paladin, ranger and bard so far. Paladin is ok-ish in converstations but I switched to other characters when talking to absolute worshipers because I actually only wanted to fight them and not talk with the risk of becoming an oath breaker. Ranger felt fine overall even though I would love to have the gloomstalker option also I'm missing the upgrades WotC made for the Ranger as I like builds with solid outside of combat skills (BG3 has nothing useful as favorite enemies nor the option for expertise). Bard seems like a good translation to BG3 and its always fun to have a character that can be of use in all situations.